| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1%
|
| 0 | 32 |
32.7%
|
|
| 1 | 14 |
14.3%
|
|
| 2 | 12 |
12.2%
|
|
| 3 | 3 |
3.1%
|
|
| 4 | 5 |
5.1%
|
|
| 5 | 6 |
6.1%
|
|
| 6 | 1 |
1%
|
|
| 7 | 1 |
1%
|
|
| 8 | 1 |
1%
|
|
| 9 | 2 |
2%
|
|
| 10 | 7 |
7.1%
|
|
| 11 | 1 |
1%
|
|
| 15 | 1 |
1%
|
|
| 16 | 1 |
1%
|
|
| 17 | 1 |
1%
|
|
| 18 | 1 |
1%
|
|
| 19 | 1 |
1%
|
|
| 20 | 4 |
4.1%
|
|
| 30 | 1 |
1%
|
|
| 39 | 1 |
1%
|
|
| 40 | 1 |
1%
|
|
| Sysmiss | 279 |